// JavaScript Document
if (window.Event) 

document.captureEvents(Event.MOUSEUP); 

 

function nocontextmenu() 

{ 

event.cancelBubble = true 

event.returnValue = false; 

 

return false; 

} 

 

function norightclick(e) 

{ 

if (window.Event) 

{ 

if (e.which == 2 || e.which == 3) 

return false; 

} 

else 

if (event.button == 2 || event.button == 3) 

{ 

event.cancelBubble = true 

event.returnValue = false; 

return false; 

} 

 

} 

 

document.oncontextmenu = nocontextmenu; // for IE5+ 

document.onmousedown = norightclick; // for all others 

//--> 

//屏蔽 F5 刷新键等键 

document.onkeydown=function(){ 

if(event.keyCode==8||event.keyCode==116||(event.ctrlKey && event.keyCode==116)){ 

alert("禁止刷新网页！"); 

event.keyCode=0; 

return false; 

} 

} 


